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Finding the Fourth Proportional to 20,354.62, 30,536.70 and 6,313.93

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Solution

The fourth proportional to 20,354.62, 30,536.70 and 6,313.93 is: 9,472.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,354.62 : 30,536.70 = 6,313.93 : x
  2. Step 2: Convert to fraction form
    20,354.62/30,536.70 = 6,313.93/x
  3. Step 3: Cross multiply
    20,354.62x = 30,536.70 × 6,313.93
  4. Step 4: Simplify right side
    20,354.62x = 192,806,586.23
  5. Step 5: Solve for x
    x = 192,806,586.23/20,354.62
  6. Step 6: Final answer
    x = 9,472.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.